Dangers of compressor reverse rotation
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If the compressor runs in reverse, why does it damage the dry gas seal? I would appreciate some guidance from the experts
The rotating ring of the dry gas seal has spiral grooves; reversing rotation cannot generate the pressure necessary to separate the rotating ring from the stationary ring, which leads to wear and damage!
Dry gas seals are divided into single-direction grooves and double-direction grooves. Single-direction grooves cannot rotate in the reverse direction, as reverse rotation prevents the formation of a rigid air film that keeps the stationary and rotating rings apart, thereby causing wear
Dry gas seals are a type of non-contact seal; if they do not have dual helical grooves, no air film can be generated to push away the sealing surface, which can lead to wear or even destruction of the seal
How can I determine whether a dry gas seal has a one-way groove or a two-way groove? Through which model code?
Previously, our compressors experienced reverse rotation, which caused damage to the dry gas seal; after technical modifications, such reverse rotation no longer occurred